【摘要】 本文应用线性徽分方程的算子迭加原理，将二维对流扩散方程的有限分析法交替方向用于三维对流扩散方程，从而得到较三维有限分析法简单实用的混合有限分析法．接着用数学分析法证明了该方法的稳定性和收敛性．并用指定强迫解方法对方程离散格式和程序设制等做了验证．最后计算了三维紊动射流，计算结果与实验资料一致，表明用混合有限分析法计算三维对流扩散问题是可行的．更多还原

【Abstract】 In this paper, a mixing finite analytic method is applied to solve 3-D convec tion-diffusion equations by using operator superposition principle in linear differential equation. The stability and convergence of this method has been proved mathematically and its discretization scheme is verified by prescribed solution forcing method. A 3-D turbulent jet is being simulated. The computational result is in good agreement with the experimental result. It shows that the mixing finite analytic method can be used to solve the 3-D convection and diffusion problems.更多还原